Water Inflow Amount Prediction for Karst Tunnel with Steady Seepage Conditions

Tunnel engineering is an important aspect of developing and utilizing underground spaces. water inrush became a common problem that restricts the safe efficient construction tunnels. This paper focuses on karst water-rich tunnel in Chongqing establishes seepage field distribution model around tunnel, analyzing evolution law field. The balance method runoff modulus are used to predict inflow. prediction for inflow areas combined with long-term on-site hydrology observations. groundwater front face drawn using software, successfully predicting larger area face. risk level tunnels carried out SVR model. An expression formula head established by conformal mapping relationship, status ultimately determined. overall accuracy better than volume tunnel. large ahead heading achieved can provide reference guidance other karst-rich region.